154563 has 4 divisors (see below), whose sum is σ = 206088. Its totient is φ = 103040.

The previous prime is 154543. The next prime is 154571. The reversal of 154563 is 365451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 154563 - 2¹⁴ = 138179 is a prime.

It is a D-number.

154563 is a lucky number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (154523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25758 + ... + 25763.

It is an arithmetic number, because the mean of its divisors is an integer number (51522).

2¹⁵⁴⁵⁶³ is an apocalyptic number.

154563 is a deficient number, since it is larger than the sum of its proper divisors (51525).

154563 is an equidigital number, since it uses as much as digits as its factorization.

154563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51524.

The product of its digits is 1800, while the sum is 24.

The square root of 154563 is about 393.1450114144. The cubic root of 154563 is about 53.6663237422. Note that the first 3 decimals are identical.

It can be divided in two parts, 154 and 563, that added together give a palindrome (717).

The spelling of 154563 in words is "one hundred fifty-four thousand, five hundred sixty-three".